Merge "Avoid double quiet mode requests" into udc-dev am: 8e13abeb am:...

Merge "Avoid double quiet mode requests" into udc-dev am: 8e13abeb am: 4c5394af am: 9de78178 am: 8be7a132

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23489320



Change-Id: I0ac3a895005dd03edfc8e052b95c538edcd63b93
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>